Komori is an ordinary, middle-aged business executive who is fed up with people walking all over him. Neither his family nor his coworkers have any respect for him. One fateful day while riding the train, a woman falsely accuses him of groping her, causing Komori to have his first violent outburst. From that moment, he decides to wield his own brand of justice and becomes determined to free his community of crime. Soon afterwards, people begin to idolize him and his work.